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#ifndef M4_MERIDIAN_CONVERGENCE_ANGLE_CORRECTION_HPP
#define M4_MERIDIAN_CONVERGENCE_ANGLE_CORRECTION_HPP

#include "llh_converter/llh_converter.hpp"
#include <boost/math/constants/constants.hpp>

namespace llh_converter
{

struct LLA
{
    double latitude;
    double longitude;
    double altitude;
};

struct XYZ
{
    double x;
    double y;
    double z;
};

struct Vector2d
{
    double x;
    double y;
};

double getDotNorm(Vector2d a, Vector2d b);

double getCrossNorm(Vector2d a, Vector2d b);

template <class T> inline T deg2rad(T deg)
{
    return deg * boost::math::constants::degree<T>();
}

template <class T> inline T rad2deg(T rad)
{
    return rad * boost::math::constants::radian<T>();
}

double getMeridianConvergence(const LLA &lla, const XYZ &xyz,
    llh_converter::LLHConverter &llhc,  const llh_converter::LLHParam &llhc_param);

}  // namespace llh_converter

#endif
